From cec45c619b16734d854f426d70661cb6f5a9258c Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Mon, 17 Mar 2025 17:23:39 -0300
Subject: [PATCH] add bitcoin tx to nip73.

---
 73.md | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/73.md b/73.md
index d15c5b23..49bf6ae5 100644
--- a/73.md
+++ b/73.md
@@ -13,17 +13,18 @@ There are certain established global content identifiers such as [Book ISBNs](ht
 
 ## Supported IDs
 
-| Type               | `i` tag                             | `k` tag                  |
-| ---                | ---                                 | ---                      |
-| URLs               | "`<URL, normalized, no fragment>`"  | "web"                    |
-| Hashtags           | "#`<topic, lowercase>`"             | "#"                      |
-| Geohashes          | "geo:`<geohash, lowercase>`"        | "geo"                    |
-| Books              | "isbn:`<id, without hyphens>`"      | "isbn"                   |
-| Podcast Feeds      | "podcast:guid:`<guid>`"             | "podcast:guid"           |
-| Podcast Episodes   | "podcast:item:guid:`<guid>`"        | "podcast:item:guid"      |
-| Podcast Publishers | "podcast:publisher:guid:`<guid>`"   | "podcast:publisher:guid" |
-| Movies             | "isan:`<id, without version part>`" | "isan"                   |
-| Papers             | "doi:`<id, lowercase>`"             | "doi"                    |
+| Type                | `i` tag                               | `k` tag                  |
+| ---                 | ---                                   | ---                      |
+| URLs                | "`<URL, normalized, no fragment>`"    | "web"                    |
+| Hashtags            | "#`<topic, lowercase>`"               | "#"                      |
+| Geohashes           | "geo:`<geohash, lowercase>`"          | "geo"                    |
+| Books               | "isbn:`<id, without hyphens>`"        | "isbn"                   |
+| Podcast Feeds       | "podcast:guid:`<guid>`"               | "podcast:guid"           |
+| Podcast Episodes    | "podcast:item:guid:`<guid>`"          | "podcast:item:guid"      |
+| Podcast Publishers  | "podcast:publisher:guid:`<guid>`"     | "podcast:publisher:guid" |
+| Movies              | "isan:`<id, without version part>`"   | "isan"                   |
+| Papers              | "doi:`<id, lowercase>`"               | "doi"                    |
+| Bitcoin Transaction | "bitcoin:tx:`<txid, hex, lowercase>`" | "bitcoin:tx"             |
 
 ---